CN106913987A - A kind of capsule fireproofing extinguishing materials for coal bed fire and preparation method thereof - Google Patents
A kind of capsule fireproofing extinguishing materials for coal bed fire and preparation method thereof Download PDFInfo
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- CN106913987A CN106913987A CN201710091296.6A CN201710091296A CN106913987A CN 106913987 A CN106913987 A CN 106913987A CN 201710091296 A CN201710091296 A CN 201710091296A CN 106913987 A CN106913987 A CN 106913987A
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0007—Solid extinguishing substances
- A62D1/0021—Microcapsules
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0092—Gaseous extinguishing substances, e.g. liquefied gases, carbon dioxide snow
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K21/00—Fireproofing materials
- C09K21/02—Inorganic materials
- C09K21/04—Inorganic materials containing phosphorus
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- Fireproofing Substances (AREA)
- Fire-Extinguishing Compositions (AREA)
Abstract
The invention discloses a kind of capsule fireproofing extinguishing materials for coal bed fire and preparation method thereof, the fireproofing extinguishing materials include core and the clad being coated on the outside of core, core is powder retardant, and powder retardant is ammonium carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, the mixed-powder retardant of calcium chloride；Clad is organic polymer, organic polymer is melamine resin, core outer layer is coated on by drying with water bath method, ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride, the mass fraction ratio of melamine resin are 24 27: 10 11: 18 20: 9 10: 67: 25 33: 0.5.Resulting materials of the present invention have the advantages that nontoxic, pollution-free, storage it is convenient, can more uniform fold flame range, fire extinguishing cycle is short, effect it is good, with leak stopping, oxygen barrier, cooling and Inhibition, easy to use, simple operation.
Description
Technical field
The present invention relates to preventing and extinguishing fire of coal mine technical field, and in particular to a kind of capsule fireproofing extinguishing materials for coal bed fire
And preparation method thereof.
Background technology
Coal-mine fire is one of important disaster of influence Safety of Coal Mine Production, and conventional fire-fighting mode has grouting yellow mud to put out a fire
System, grouting injecting glue fire extinguishing system, inert gas fire-fighting, foam fire-fighting, powdery inerting retardant fire extinguishing etc., they are all present
Respective shortcoming.Grouting is, to measure victory, but to be difficult to be capped in the presence of some places, while the reason for restrictive condition, having
A little places cannot use；During grouting under substantial amounts of water injection well, environment is polluted, greatly increase mine drainage, blowdown work
Amount and resource consumption, increased the later stage resumes work the cost of product of looking unfamiliar.Using noble gas (N2、CO2Deng) fire extinguishing when, during fire extinguishing
Use more, less use of preventing fires.And two kinds of gas each the different working face of applicable elements (such as rise mining or bow tiltedly is opened
Adopt, while region inleakage of putting out a fire is smaller), while the supporting vertical tube of needs or other detecting systems match therewith.Initial stage
Input is larger, and the oxygen concentration that also avoid a large amount of noble gases to be leaked into working face reduction working face at the moment in perfusion causes accident
Occur.Meanwhile, inert gas is bad to the coal body cooling-down effect of big thermal capacitance, and the fire extinguishing cycle is more long, the easy resume combustion of flame range；And to existing
The wind leaking stoppage job requirement of field is higher.Cooling can be played to the lazy bubble of goaf, reduction is leaked out, reduce goaf oxygen concentration etc. and make
With.But lazy bubble pressure injection in broken coal, foam performance is very poor, and foaming multiple is low, if only playing retardant, cost is too high, and
It is efficient too low.Float coal to having formed high temperature, only relies on lazy bubble oxygen barrier fire extinguishing, and it is very big to note bubble amount, and the fire extinguishing cycle is also very long,
And once stop the note very easy resume combustion of bubble.Retardant (CaCl2、MgCl2、NaCl2Deng) be difficult to enter problematic region, material is in itself
Water absorption very little, is unable to undergo goaf high temperature evaporation, and actual effect is limited, and to the seriously polluted of mine water.Powdery inerting hinders
Agent technology fire extinguishing effect is preferable, but pulverulent material deliquescence is not easy to maintain, and (as at room temperature, diammonium hydrogen phosphate is in humid air
Discharge ammonia), it is not easy to be uniformly dispersed in coal body, therefore, it is difficult to give full play to its fire extinguishing performance, such as use its aqueous solution
Injection coal body is then easy to run off.At present gel is mixed into by base-material waterglass and coagulant (ammonium hydrogen carbonate, sodium metaaluminate etc.) with water
Fire extinguishing is used, but ammonium hydrogen carbonate can separate out substantial amounts of ammonia in plastic, cause operating environment severe and under the influence of distinguished and admirable work
Make personnel's operation and healthy.Meanwhile, this gel contacts easily damage workman's eyes and skin accidentally in operation；With inclined
Sodium aluminate matches somebody with somebody glue, and operation requirement is higher, is not readily dissolved in water, and stirring intensity is big, there is certain corrosivity, also there is certain to health
Infringement.The technique of both the above gel conclusion of the business process needs two complete equipments to work simultaneously, and (lucky Liaohe River coagulant needs each to match somebody with somebody respectively
Than), operation grasps inconvenient, and employment is more.
The content of the invention
To solve the above problems, the invention provides a kind of for the capsule fireproofing extinguishing materials of coal bed fire and its preparation side
Method, prepared material have nontoxic, pollution-free, storage it is convenient, being capable of more uniform fold flame range, fire extinguishing cycle is short, effect
Well, there is leak stopping, oxygen barrier, cooling and Inhibition, easy to use, simple operation, down-hole coal bed fire is widely used in
Calamity is prevented and treated.
To achieve the above object, the technical scheme taken of the present invention is：
A kind of capsule fireproofing extinguishing materials for coal bed fire, including core and the clad being coated on the outside of core, institute
Core is stated for powder retardant, the powder retardant is ammonium carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride
Mixed-powder retardant；The clad is organic polymer, and the organic polymer is melamine resin, is passed through
Drying with water bath method is coated on core outer layer, the ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride, three
The mass fraction ratio of melamine-formaldehyde resin is 24-27: 10-11: 18-20: 9-10: 6-7: 25-33: 0.5.
Wherein, the ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride are solid powder.
Wherein, the melamine resin is by the modified melamine resin powder for being dissolved in organic solvent of alcohol
End.
Wherein, the alcohol be dispersant, using the tert-butyl alcohol, octanol, nonyl alcohol, decyl alcohol any one.
Wherein, the organic solvent is ether.
A kind of preparation method of above-mentioned capsule fireproofing extinguishing materials for coal bed fire, comprises the following steps：
S1, the weight for weighing each component respectively according to following ratio：
Ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride, melamine resin, dispersant,
Ether, the quality parts ratio of the protectiveness solution containing 2% gelatin are 24-27: 10-11: 18-20: 9-10: 6-7: 25-33:
0.5-2∶220-300∶1100-1500；
S2, by ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride, melamine resin point
Do not grind, its particle diameter is respectively less than 50 μm, and ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride are put
Carry out full and uniform being mixed and made into mixed-powder in a reservoir；
S3, melamine resin is placed in ether, stirring acceleration is dissolved to and is completely dissolved, and by above-mentioned mixed powder
End and dispersant are added in solution, powder is dispersed in diethyl ether solution with certain mixing speed；
S4, above-mentioned solution is slowly dropped in the protectiveness solution containing 2% gelatin under conditions of stirring, 25
DEG C, 2h is stirred under reduced pressure, by filtering, being drying to obtain the capsule fireproofing extinguishing materials for coal bed fire；
S5, will be used for coal bed fire capsule fireproofing extinguishing materials be put into injecting unit, with water be mixed to form slurries inject
To coal body precalculated position.
The present invention has following effective effect：
With ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride mixed-powder as core, with trimerization
Cyanamide formaldehyde resin is clad, and good thermal stability and water imbibition are low, and storage is convenient, and letting out for core will not occur at normal temperatures
Dew, pernicious gas will not be also produced during flame range is injected；When being only higher than uniform temperature, ammonium hydrogen carbonate starts to decompose generation
Ammonia gas and water, carbon dioxide, internal pressure increase cause clad swelling fracture, core to be released, quick to prevent coal cryogenic oxygen
Change and coal spontaneous combustion.This product and water are mixed to form the slurries with certain viscosity according to certain ratio, are noted by injecting unit
Enter flame range, can more be uniformly covered on coal surface, solve the problems, such as that powder inertia retardant is difficult to be uniformly injected into flame range.
Therefore, the present invention has very big prospect of the application in terms of down-hole coal bed fire control and application.
Capsule fireproofing extinguishing materials core for coal bed fire of the invention be ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride,
The mixed-powder retardant of diammonium hydrogen phosphate, calcium chloride.On the basis of ammonium salt retardant, increase villaumite retardant, strengthen
To the later stage resistanceization effect of Low-temperature Oxidation of Coal.Ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate can be not
Same temperature stage is decomposed and reacts generation ammonia, carbon dioxide and water, and its decomposition reaction is the endothermic reaction, can absorb
A part of heat of low-temperature oxidation of coal release；The moisture drawn in humid air by ammonium chloride, diammonium hydrogen phosphate, calcium chloride and
Reacting the water of generation need to absorb the heat of a part in evaporation, thus reduce coal temperature, slow oxidative reaction, certain
Coal spontaneous combustion is inhibited in degree.Free ammonia reacts with OH bases and generates stabilization macromolecular, and calcium chloride is being covered in coal
Surface, can be added to during the free chain reaction of coal, generate the chain link of stabilization, thus inhibit or slow down coal
Surface Mars free radical group and the reaction rate of oxygen, prevent the continuation of low-temperature oxidation of coal reaction.The ammonia and dioxy of generation
It is inert gas to change carbon, coal can be decomposited into the concentration dilution of the fuel gas for coming to lower flammability limit, while diluting reaction
Oxygen concentration in area, reduces the oxidizing reaction rate of coal, plays Inhibition.The solid that powder retardant is generated after reacting
Cover coal surface and completely cut off the contact of coal oxygen, so as to prevent the oxidation reaction of coal.The core of this product can be in coal cryogenic oxygen
Each stage of change process carries out resistance, and compared with other retardants, extinguishing effect is more preferable.
Capsule fireproofing extinguishing materials clad for coal bed fire of the invention is melamine resin, clad tool
There is good heat endurance and heat resistance, certain moderate pressure high, film forming and good dispersion can be born, in certain temperature
Can react generation nitrogen under degree.Melamine resin is covered in coal surface, reduces leakage intensity, and isolation coal oxygen connects
Touch, prevent oxidation of coal.Coal can be decomposited the concentration dilution of the fuel gas for coming to lower flammability limit by the nitrogen of generation, while
Oxygen concentration in diluting reaction area, reduces the oxidizing reaction rate of coal, plays Inhibition.
Capsule fireproofing extinguishing materials for coal bed fire of the invention are prepared and use drying with water bath method, from ether as having
Machine solvent, from the solution containing 2% gelatin as protectiveness solution.Ether low boiling point, it is volatile, shorten and prepare microcapsules
Time；Gelatin solution can make multiphase emulsion stable system, and preventing multiphase emulsion system from reverse forwarding occurring discharges capsule-core
Out, the yield of microcapsules is improved.Drying with water bath method preparation process only needs gelatin solution and dispersant, process is simple, reaction temperature
Degree is low, and dangerous waste will not be produced in course of reaction, and environmental protection is dangerous low, has broad application prospects.
Capsule fireproofing extinguishing materials preparation method for coal bed fire of the invention selects the tert-butyl alcohol, octanol, nonyl alcohol, decyl alcohol
As dispersant, and rational addition is given, solid can be made dispersed in organic solvent, obtained microcapsules granularity
It is smaller, complete spheric granules is formed, good dispersion, clad is complete, improves microcapsules yield, microcapsules has been effectively ensured and has prevented
Fire extinguishing material stability at normal temperatures and pressures, can long term storage, it is safe.
Brief description of the drawings
Fig. 1 is the injecting unit schematic diagram used in the embodiment of the present invention.
Specific embodiment
In order that objects and advantages of the present invention become more apparent, the present invention is carried out further with reference to embodiments
Describe in detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit this hair
It is bright.
Embodiment 1
A kind of capsule fireproofing extinguishing materials and preparation method for coal bed fire, the capsule prepared for coal bed fire is prevented going out
Material needed for fiery material is by mass fraction ratio：
Produced according to the following steps：
A, the weight for proportionally weighing each component respectively；
B, by ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride, melamine resin difference
Grinding, makes its particle diameter be respectively less than 50 μm, and ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride are placed on
Carry out full and uniform being mixed and made into mixed-powder in container.
C, melamine resin is placed in ether, stirring acceleration is dissolved to and is completely dissolved, and by above-mentioned mixed powder
End and dispersant are added in solution, with certain mixing speed until powder is dispersed in diethyl ether solution.
D, above-mentioned solution is slowly dropped in the protectiveness solution containing 2% gelatin under conditions of stirring, 25 DEG C,
2h is stirred under reduced pressure, by filtering, being drying to obtain underground coal mine microcapsules fireproofing extinguishing materials.
E, will be used for coal bed fire capsule fireproofing extinguishing materials be put into injecting unit 1, being mixed to form slurries 3 with water injects
To the precalculated position of coal body 2.
Embodiment 2
A kind of capsule fireproofing extinguishing materials and preparation method for coal bed fire, the capsule prepared for coal bed fire is prevented going out
Material needed for fiery material is by mass fraction ratio：
Produced according to the following steps：
A, the weight for proportionally weighing each component respectively；
B, by ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride, melamine resin difference
Grinding, makes its particle diameter be respectively less than 50 μm, and ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride are placed on
Carry out full and uniform being mixed and made into mixed-powder in container.
C, melamine resin is placed in ether, stirring acceleration is dissolved to and is completely dissolved, and by above-mentioned mixed powder
End and dispersant are added in solution, with certain mixing speed until powder is dispersed in diethyl ether solution.
D, above-mentioned solution is slowly dropped in the protectiveness solution containing 2% gelatin under conditions of stirring, 25 DEG C,
2h is stirred under reduced pressure, by filtering, being drying to obtain underground coal mine microcapsules fireproofing extinguishing materials.
E, will be used for coal bed fire capsule fireproofing extinguishing materials be put into injecting unit 1, being mixed to form slurries 3 with water injects
To the precalculated position of coal body 2.
Embodiment 3
A kind of capsule fireproofing extinguishing materials and preparation method for coal bed fire, the capsule prepared for coal bed fire is prevented going out
Material needed for fiery material is by mass fraction ratio：
Produced according to the following steps：
A, the weight for proportionally weighing each component respectively；
B, by ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride, melamine resin difference
Grinding, makes its particle diameter be respectively less than 50 μm, and ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride are placed on
Carry out full and uniform being mixed and made into mixed-powder in container.
C, melamine resin is placed in ether, stirring acceleration is dissolved to and is completely dissolved, and by above-mentioned mixed powder
End and dispersant are added in solution, with certain mixing speed until powder is dispersed in diethyl ether solution.
D, above-mentioned solution is slowly dropped in the protectiveness solution containing 2% gelatin under conditions of stirring, 25 DEG C,
2h is stirred under reduced pressure, by filtering, being drying to obtain underground coal mine microcapsules fireproofing extinguishing materials.
E, will be used for coal bed fire capsule fireproofing extinguishing materials be put into injecting unit 1, being mixed to form slurries 3 with water injects
To the precalculated position of coal body 2.
Embodiment 4
A kind of capsule fireproofing extinguishing materials and preparation method for coal bed fire, the capsule prepared for coal bed fire is prevented going out
Material needed for fiery material is by mass fraction ratio：
Produced according to the following steps：
A, the weight for proportionally weighing each component respectively；
B, by ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride, melamine resin difference
Grinding, makes its particle diameter be respectively less than 50 μm, and ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride are placed on
Carry out full and uniform being mixed and made into mixed-powder in container.
C, melamine resin is placed in ether, stirring acceleration is dissolved to and is completely dissolved, and by above-mentioned mixed powder
End and dispersant are added in solution, with certain mixing speed until powder is dispersed in diethyl ether solution.
D, above-mentioned solution is slowly dropped in the protectiveness solution containing 2% gelatin under conditions of stirring, 25 DEG C,
2h is stirred under reduced pressure, by filtering, being drying to obtain underground coal mine microcapsules fireproofing extinguishing materials.
E, will be used for coal bed fire capsule fireproofing extinguishing materials be put into injecting unit 1, being mixed to form slurries 3 with water injects
To the precalculated position of coal body 2.
Embodiment 5
A kind of capsule fireproofing extinguishing materials and preparation method for coal bed fire, the capsule prepared for coal bed fire is prevented going out
Material needed for fiery material is by mass fraction ratio：
Produced according to the following steps：
A, the weight for proportionally weighing each component respectively；
B, by ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride, melamine resin difference
Grinding, makes its particle diameter be respectively less than 50 μm, and ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride are placed on
Carry out full and uniform being mixed and made into mixed-powder in container.
C, melamine resin is placed in ether, stirring acceleration is dissolved to and is completely dissolved, and by above-mentioned mixed powder
End and dispersant are added in solution, with certain mixing speed until powder is dispersed in diethyl ether solution.
D, above-mentioned solution is slowly dropped in the protectiveness solution containing 2% gelatin under conditions of stirring, 25 DEG C,
2h is stirred under reduced pressure, by filtering, being drying to obtain underground coal mine microcapsules fireproofing extinguishing materials.
E, will be used for coal bed fire capsule fireproofing extinguishing materials be put into injecting unit 1, being mixed to form slurries 3 with water injects
To the precalculated position of coal body 2.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of capsule fireproofing extinguishing materials for coal bed fire, including core and the clad being coated on the outside of core, it is special
Levy and be, the core is powder retardant, the powder retardant is ammonium carbonate, ammonium dihydrogen phosphate, ammonium chloride, phosphoric acid hydrogen two
The mixed-powder retardant of ammonium, calcium chloride；The clad is organic polymer, and the organic polymer is melamino-formaldehyde
Resin, core outer layer is coated on by drying with water bath method, the ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate,
Calcium chloride, the mass fraction ratio of melamine resin are 24-27: 10-11: 18-20: 9-10: 6-7: 25-33: 0.5.
2. a kind of capsule fireproofing extinguishing materials for coal bed fire as claimed in claim 1, it is characterised in that the bicarbonate
Ammonium, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride are solid powder.
3. a kind of capsule fireproofing extinguishing materials for coal bed fire as claimed in claim 1, it is characterised in that the melamine
Amine-formaldehyde resins are by the modified melamine resin powder for being dissolved in organic solvent of alcohol.
4. a kind of capsule fireproofing extinguishing materials for coal bed fire as claimed in claim 4, it is characterised in that the alcohol for point
Powder, using the tert-butyl alcohol, octanol, nonyl alcohol, decyl alcohol any one.
5. a kind of capsule fireproofing extinguishing materials for coal bed fire as claimed in claim 4, it is characterised in that described organic molten
Agent is ether.
6. the preparation method of a kind of capsule fireproofing extinguishing materials for coal bed fire as claimed in claim 1, it is characterised in that
Comprise the following steps：
S1, the weight for weighing each component respectively according to following ratio：
Ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride, melamine resin, dispersant, second
Ether, the quality parts ratio of the protectiveness solution containing 2% gelatin are 24-27: 10-11: 18-20: 9-10: 6-7: 25-33: 0.5-
2∶220-300∶1100-1500；
S2, ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride, melamine resin are ground respectively
Mill, makes its particle diameter be respectively less than 50 μm, and ammonium hydrogen carbonate, ammonium dihydrogen phosphate, ammonium chloride, diammonium hydrogen phosphate, calcium chloride are placed on into appearance
Carry out full and uniform being mixed and made into mixed-powder in device；
S3, melamine resin is placed in ether, stirring acceleration is dissolved to and is completely dissolved, and by above-mentioned mixed-powder and
Dispersant is added in solution, with certain mixing speed until powder is dispersed in diethyl ether solution；
S4, above-mentioned solution is slowly dropped in the protectiveness solution containing 2% gelatin under conditions of stirring, 25 DEG C, subtract
2h is stirred under the conditions of pressure, by filtering, being drying to obtain the capsule fireproofing extinguishing materials for coal bed fire；
S5, will be used for coal bed fire capsule fireproofing extinguishing materials be put into injecting unit, being mixed to form slurries with water is injected into coal
Body precalculated position.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105126289A (en) * | 2015-07-17 | 2015-12-09 | 煤炭科学技术研究院有限公司 | Underground coal mine fire preventing and extinguishing material and using method thereof |
| CN108167016A (en) * | 2017-11-23 | 2018-06-15 | 中国矿业大学 | A kind of composite micro-capsule retardant for preventing spontaneous combustionof coal and preparation method thereof |
| CN108729943A (en) * | 2018-04-28 | 2018-11-02 | 中国矿业大学 | A kind of Thermo-sensitive microencapsulation retardant and preparation method thereof of prevention coal spontaneous combustion |
| CN109420281A (en) * | 2017-09-04 | 2019-03-05 | 西安威西特消防科技有限责任公司 | A kind of microcapsules self-extinguishing agent |
| CN109908526A (en) * | 2019-04-28 | 2019-06-21 | 太原理工大学 | Microcapsule product and its application in long-acting prevention and treatment coal mine high inclination-angle goaf early stage spontaneous combustion disaster are shed in a kind of thermal response |
| CN111298355A (en) * | 2020-03-23 | 2020-06-19 | 四川天地同光科技有限责任公司 | Water-based multiphase novel fire-fighting agent for extinguishing burning diesel oil and preparation method thereof |
| CN111514509A (en) * | 2020-05-19 | 2020-08-11 | 四川天地同光科技有限责任公司 | Water-based solid micro-system fire extinguishing agent for extinguishing combustion flame of lithium battery and preparation method thereof |
| CN112494879A (en) * | 2020-11-25 | 2021-03-16 | 河南科技大学 | High-efficiency aqueous film-forming foam extinguishing agent |
| CN112657113A (en) * | 2020-01-03 | 2021-04-16 | 华中科技大学 | Anti-afterburning type flame-retardant fire extinguishing agent applied to electric power system fire and preparation method thereof |
| CN111939512B (en) * | 2020-08-19 | 2021-12-31 | 中国人民警察大学 | Submicron-grade liquid core microcapsule fire extinguishing medium |
| CN116159275A (en) * | 2023-04-03 | 2023-05-26 | 武汉中科先进材料科技有限公司 | Carbon dioxide fire extinguishing microcapsule and preparation method thereof |
| CN116603205A (en) * | 2023-04-06 | 2023-08-18 | 安徽佳泰矿业科技有限公司 | Synthetic film coal mine fire preventing and extinguishing material and application thereof |
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